Author Archives: steve bush

Sine-wave dc motor controller works with 12-pole rotor for quiet power

Toshiba has launched a three-phase brushless fan motor controller IC for white good, intended to increase efficiency drive and reduce noise. “Conventionally, motor control is carried out by a microcontroller and an 8-pole rotor using a rotation-control signal that delivers 3 pulses per cycle,” said the firm, “Switching from an 8-pole to 12-pole rotor achieves ...

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Maxim puts payment card grade security into package under 5x5mm

Maxim is aiming at securing industrial, consumer, computing and IoT applications with its MAX32558 microcontroller, which it has shrunk compared with its previous security offerings. Compliant with Federal Information Processing Standard (FIPS) 140-2 L3&4 certification, the newest member of its DeepCover family, MAX32558 offers cryptographic operations, key storage and active tamper detection to products in ...

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Tokyo Tech moots BiSb for next-gen MRAM

Bismuth-antimony (BiSb) alloys are the best candidate for the first industrial application of topological insulators, a step towards spin-orbit torque magneto resistive memory (SOT-MRAM), with the potential to replace existing memory, according to scientists at the Tokyo Institute of Technology (Tokyo Tech). Led by Pham Nam Hai, the team has developed thin films of BiSb for a ...

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NASA to try strained-layer super lattice imagers in space

NASA has turned to strained-layer super lattice (SLS) imagers for infra-red space cameras. They are based on earlier ‘quantum well infrared photodetectors’ (QWIPs) that are flying on Landsat 8, and will be flying Landsat 9, which monitor vegetation from space. SLS imaging arrays are fabricated on a semiconductor wafer, using hundreds of alternating epitaxially layers ...

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An iron-based 2D material from nature

An international team has added another two-dimensional material to the expanding list that started with graphene. Hematene is a three-atom-thick iron oxide mono-layer, which has been made at Rice University in Texas by exfoliating it from the naturally-occurring iron ore heamatite (or ‘hematite’). Transmission electron image shows a single sheet of hematene. Scale bar 0.5μm ...

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16 optical fibre connectors in 1U rack panel

Surrey-based Cliff Electronics is offering pre-assembled fibre-optic connector rack panels, fitting 16 connectors in each 1U x 19” panel. Based on the firm’s ‘FeedThrough’ profile, which fits various electrical and optical connectors in the standard cut-out for an XLR connector, there are four pre-loaded panels – include one with the ST MM (multi-mode) fibre-optic connector whose straight ...

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UK made: low-pressure over-moulding service

EC Electronics is offering low-pressure over-moulding encapsulation for PCBs and cable assemblies from its facility near Reading, as well as its Romanian factory. The process is an alternative between traditional potting and injection moulding. “Although initially used in the automotive industry to waterproof connectors and to add strain-relief for wires and cables, over-moulding is now used to ...

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Dual quiet low-capacitance p-jfet, for when n-fets miss the spot

“Historically, p-channel jfets availability has declined,” according to Californian fet maker Linear Integrated Systems (LIS). “Complementary single n-channel and p-channel jfets have become limited to a few industry standards. Complementary monolithic dual n-channel and p-channel jfets have not been offered for many years, leaving designers under supported.” And its answer to the dearth of choice is ...

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BridgeTek puts colour touch screen on Arduino

Sunflower Shield adds a touch-enabled 3.5in QVGA TFT LCD to Arduino projects, and demonstrates Bridgetek’s FT813 video controller – which uses the firm’s innovative ‘EVE’ video controller which does away with the need for video ram. Designed by Cowfish Studios, it will render 24bit colour content in either landscape or portrait orientations, plus support smooth 60frame/s animations as ...

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EPSRC puts £16m into low-carbon research

The Engineering and Physical Sciences Research Council (EPSRC) has released the funding it promised for low-carbon ‘Supergen’ national energy research centres last year. £15m will be shared between the centres, which are to be multi-disciplinary collaborations between universities, academic bodies and industry. Getting £5m each, the three Supergen Energy hubs will be focused on off-shore renewable energy, ...

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